Street-car running-gear



(No Model.)

A. V. DU PONT. STREET GAR RUNNING GEAR.

Pat nted Mar. 18, 1890.

M Iwan/tov.'

N. versus. Phanrmmnpm. wmmgw. me.

UNITED STATES ALFRED v. DU PONT, on

PATENT OFFTCE,

LOUISVILLE, KENTUCKY.

STREET-CAR RuMauve-enfin.

SPECIFICATION forming part of Letters Patent No. 423,470, dated vlVlarch18, 1890.

Application ned october 24, 1889.

To all whom it may concern.: Be it known that I, ALFRED V. DU PONT, ofLouisville, in the county of Jefferson and State of Kentucky, haveinvented certain new IIS and usefulvImprovements in Running-Gear forStreet-Cars; and I do hereby declare the following to be a full, clear,and exact description of the invention, such as will enable othersskilled in the art -to which it pertains to make and use the same.

My invention relates to improvements in running-gear for street-ears;and lit consists in certain features of construction and in combinationof parts hereinafter described, and pointed outin the claims. l

In the accompanying drawings, Figure l is a side elevation, partly insection. Fig. 2 is an elevation in transverse section on line a:

' Fig. 1.

A represents the body of the street-car, to which are attachedangle-plates a. The lateral legs of these plates underlap the car-sills,to which the plates are bolted.-

B .are the car-wheels, and C the journalboxes for the car-axles. Oneither side of the car is a rigid side bar D, extending from onejournal-box to the other, the end sections of these side bars being bentapproximately into inverted-U shape, constituting yokes D', that embracewith an easy fit the respective journal-boxes, the latter havingexternal ribs c c, extending along the sides and top thereof, between`which pair of ribs the respective yokes iit easily. O11 either side andclose to thejournal-boxes the side bars are swelled out laterally inrounded sections d d, these rounded sect-ions being countersunk from thetop to form seats for rubber rings or springs The extremes d d of theside bars exsenin No. 327,974. (No model.)

G are spiral springs, the lower ends thereof l resting on the respectivedisks E, bosses e'fitting loosely inside the springs to serve'as guidesfor the latter. The upper end of these springs abut the under sides ofthe plate a aforesaid, the latter having depending' bosses a', that fitloosely inside the upper ends of these springs and serving as guides forthe springs.

H are vertical rods or steady-pins, the upper sections thereof being oflarge size, the same fitting snugly in the bore of bosses a. Thesections of these rods next below bosses a are of the inverted conicalvariety, whereby maximum strength is combined with .minimum lightness,and the reduced sections of the rods next below the conical sectionsthereof extendingdown through thelarge central openings, respectively,in bosses c, rubber rings F, and sections d of the side bars, thecomparative size of these openings and the reduced sections of thel rodsbeing such that the rods are supposed never to come in contact withthese members d, e, and F. Below the side bars each pair of rods is con-`nected by means of straps I, the latter extending underneath theintermediate journalbox; but the strap is not supposed to come incontact with the j ournal-box except, perhaps,`

in case of violent jolting ofthe car. RodsH have shoulders h, againstwhich straps I are rigidly secured by means of nuts h. Usually pins h2are provided to prevent the possibility of these nuts losing off. Withsuch construction, the side bars'couple the journal-boxes on either sideof the car, so that they support each other, more especially Vagainstlongitudinal strain, and a blow'delivered onthe one wheel-nas, forinstance, in runningl over an obstruction-is sustained about equally byeach box on the saine side of the car.

It is desirable in street-cars to have no conn tinuous metal attachmentfrom runnin g-gear to car-body, otherwise the metallic ring,` of theWheels will be transmitted to the carbody, resulting in excessive,disagreeable, and unnecessary noise inside the car. With theconstruction shown the metal attachments are entirely disconnected bymeans of the rubber rings F aforesaid, by reason of which the noise fromthe'running-gear is reduced to a minimum inside the car.

In the matter of convenience I niayremark that by removing pin h2 andnuts 71, the carbody may be lifted from the trucks, after which the sidebars may be lifted from `the journal-boxes, thus separating the partsand leaving each car-axle and Vits wheels free, and the parts may bere-asseinbled with equal facility. j

Heretofore'jointed side bars have been used for the purpose; but thejoints thereof.

were subject to Wear, in consequence of which the joints would becomeloose and would not4 hold the parts with sufficient accuracy; also,

the journal-boxes coupled with such jointed side bars would,'in case thesprings were of unequal tension, cant forward or rearward, as j the casemightbe, thereby affecting the alignment of the axle. With my improvedrigid side bars the journal-boxes always maintain their proper positionand the axles remain always parallel.

What I claim isl. In running-gear for street-cars, thecoinbination,vwith side bars each having integral yokes for thereception of the j ournal-bjoxes ofone side and the journal-boxesresting within and supported solely by said yokes, of Vthe rubbersprings resting on the'side bars on opposite ysides of each yoke, themetal i springs supported by said rubber springs, the

stead y-pins depending from the car-body and passing looselythro'ugh themetal and rubber springs, and the yokes connecting the lower v ends ofeach pair of steady-pins, substantially l as set forth.

2. In running-gear for street-cars, in combination, journal-boxes, sidebars connecting each pair of boxes, such side bars having in-v tegralyokes adapted to directly embrace and rest on the respective boxes, eachside baron either side of the respective journal-boxes having depressedse'ats for rubber rings, caps resting on the rubber rings, spiralsprings resting on the respective caps, the upper ends of the spiralsprings engaging seats under the car-body, depending rods rigidlyconnected with the car-body attachments, such rods eX- tending, Withoutcontact, through holes in the caps, rubber rings, and side bars, eachpair of depending rods being connected by straps,-

the latterjextending under the intervening journal-box, substantially asset forth.

In testimony whereof I'si-gn this specifica- HENRY R. Du Pour, Jos. A.RICHARDSON.

tion, in the presence of two witnesses, this

